Washington (CNN) - CNN has learned that Stephanie Cutter, deputy to White House senior adviser David Plouffe, and a veteran Democratic aide, will be leaving the West Wing to join the Obama re-election campaign, according to a source familiar with the move.

Cutter, who will serve as deputy campaign manager, will depart toward the end of the year, the source said.
During the 2008 presidential campaign, Cutter served as one of Michelle Obama's key aides, then after the election became spokesperson for Barack Obama's transition team.

She later joined the administration and helped coordinate communication around health care reform.

Cutter also played a key role in Supreme Court Justice Sonya Sotomayor's confirmation process.